<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html">
	<meta charset="utf-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
	<title></title>
</head>
<body erke-hide>
</body>
<script>
/**
 * @param {string} s
 * @return {number}
 */
var titleToNumber = function(s) {
    s=s.split('').reverse();
	var res=0;
	var index=1;
	for(i=0;i<s.length;i++){
		//console.log(s[i].charCodeAt()-64);
		res+=index*(s[i].charCodeAt()-64);
		index*=26;
	};
	console.log(res);
	return res;
};
var aAronDie=new titleToNumber("AB");
</script>
</html>
